Powder-ejector.



0. W. KLINE & H. A. LONG.

POWDER EJBGTOR.

APPLICATION IILBD 0013.29. 1909.

48,057. Patented Feb. 1, 1910.

M cu. morwmnoammzns. WASHINGTON. D. c

STATES PATENT UFFTTJE.

CHARLES W. KLINE AND HARLEY A. LONG, OF FORT WORTH, TEXAS.

POWDER-EJ'EGTOR.

To all whom it may concern:

Be it known that we, CHARLES W. KLINE and HARLEY A. LONG, both citizensof the United States of America, and both residents of Fort Worth, inthe county of Tarrantand State of Texas, have invented a new andImproved Powder -Ejector, of which the following is a specification.

This invention relates to surgical instruments and more particularly toinstruments for inserting medicine in cavities in the body, and theobject is to provide a simple instrument for inserting powders and othermedicines in cavities in the body which instrument will be perfectlysanitary, which will be smooth and without rough surfaces which wouldirritate the flesh, and which will carry a quantity of medicine therein.

One of the objects of this invention. is to provide such instrument withmeans for quickly and easily separating a dose of medi cine from thequantity of medicine carried in the instrument and arranging the same sothat the plunger will easily and certainly eject the dose of medicine.

Other objects and advantages will be fully explained in the followingdescription and the invention will be more particularly pointed out inthe claims.

Reference is had to the accompanying drawings which form a part of thisapplication.

Figure 1 is a side elevation of the instrument, the interior mechanismbeing shown in dotted outline. Fig. 2 is a longitudinal section of thetubular casings. Fig. 3 is a cross section, taken along the line az-w ofFig. 1. Fig. 4 is a cross section, taken along the line yg of Fig. 1.

Similar characters of reference are used to indicate the same partsthroughout the several views.

The entire instrument is preferably made of glass. The device has anouter barrel 1 and an inner barrel 2, the two being preferably formedintegral. A plunger 3 operates within the inner barrel 2 and is providedwith a knob or handle 4: for convenience in operation. The barrel 1 isflared on the interior at the upper part for convenience in charging theinstrument with powdered medicine. The inner barrel 2 may be formedintegral at the bottom thereof with the outer barrel and in order thatthe two barrels may maintain their positions relative to the other or sothat the outer barrel Specification of Letters Patent.

Application filed. October 29, 1909.

Patented Feb. 1, TWW.

Serial No. 525,344.

will remain concentric with the inner barrel braces 5 may be formedintegral with the two barrels, as shown in Fig. 3. The space between theinner and the outer barrel is utilized to carry a quantity of medicine.A hood or cap 6 closes both the inner and the outer barrels and the hood6 is perforated for the passage of the plunger 3 which plunger is flushwith the interior of the inner barrel and with that part ofthe outerbarrel which extends beyond the inner barrel. When the plunger is drawnpartly out of the cylinders or barrels, powder may be shaken out of thecavity between the barrels through perforations 7 in the lower part ofthe inner barrel into the mouth 8 of theouter barrel. The inner barrelmust be spaced far enough from the nozzle or mouth 8 of the outer barrelso that a single dose of medi cine will be held in the mouth of theouter barrel in position to be discharged by the plunger 3. In order tocharge the instrument with a supply of medicine, the hood or cap 6 israised far enough and the medicine is poured into the flared end of theouterbarrel while the thumb or some stopper closes the lower end of theouter barrel or the plunger 3 could be used for this purpose. The hood 6may be held on the barrel 1 by means of lugs 9 formed on the outerbarrel 1 and which operate in grooves formed on the interior of thehood. The plunger 3 is made long enough to be flush with the mouth ornozzle 8 of the outer barrel when inserted full length in the innerbarrel. Normally the plunger holds the medicine within the space betweenthe two barrels. When a dose of medicine is to be administered, theplunger may be drawn above the perforations 7 while the nozzle 8 is heldclosed. A slight shaking or tapping on the instrument will fill thespace below the perforations 7 with a dose of medicine which is ready tobe dis charged by the plunger.

Having fully described our invention, what we claim as new and desire tosecure by Letters Patent, is,--

1. A powder ejector having an inner and an outer barrel spaced apart forcarrying a quantity of powder, the inner barrel terminating above theexit of the outer barrel and having perforations at the terminationthere of communicating with the outer barrel, and a plunger operatingthrough the discharge ends of said barrels to discharge a dose ofpowder.

2. A medicine ejector having an outer barrel provided with a flaredreceiving end, an inner barrel spaced apart from the outer barrel andterminating above the discharge end of said outer barrel and havingperforations atthe termination thereof forming openings into the outerbarrel, said outer barrel having the opening through the discharge endof the same diameter as the opening through the inner barrel, and aplunger operating through the discharge ends of said barrels. 3. Amedicine ejector having an outer barrel provided with a flared receivingend, an inner barrel spaced apart from the outer barrel and terminatingwithin the outer barrel and integral therewith and having perforationsat the termination thereof, said outer barrel tapering at the dischargeend and the opening through the discharge end being uniform with theopening through said inner barrel, a perforated cap closing saidbarrels, and a plunger operating through said cap and through thedischarge ends of said barrels.

4. A medicine ejector having an outer communication with said outerbarrel, and a plunger operating through the discharge ends of saidbarrels to discharge doses of medicine therefrom.

In testimony whereof, we set our hands in the presence of two witnesses,this 13th A day of October, 1909.

CHARLES V. KLINE.

lVitnesses A. L. JACKSON, J. W. STETT.

